Files
sigma-rules/rules
Isai 477df5c635 [Rule Tuning] AWS S3 Static Site Javascript File Uploaded (#5264)
This rule is triggering as expected. However, the threat this rule is meant to capture is a potential malicious .js file upload. Currently it is capturing both GetObject (read file) and PutObject (write file) API calls which is adding noise without adding much threat detection value.
- Removed `GetObject` API call from scope, so this rule focuses only on write activity. This reduced  alert telemetry volume by ~73%
- added `event.outcome == success` criteria to exclude failed upload attempts
- corrected `Pulumi` typo in user agent exclusion criteria
- reduced execution window
- added highlighted fields
2025-11-07 17:00:56 -05:00
..
2025-03-26 11:04:14 -04:00
2025-10-17 21:01:13 +05:30

rules/

Rules within this folder are organized by solution or platform. The structure is flattened out, because nested file hierarchies are hard to navigate and find what you're looking for. Each directory contains several .toml files, and the primary ATT&CK tactic is included in the file name when it's relevant (i.e. windows/execution_via_compiled_html_file.toml)

folder description
. Root directory where rules are stored
apm/ Rules that use Application Performance Monitoring (APM) data sources
cross-platform/ Rules that apply to multiple platforms, such as Windows and Linux
integrations/ Rules organized by Fleet integration
linux/ Rules for Linux or other Unix based operating systems
macos/ Rules for macOS
ml/ Rules that use machine learning jobs (ML)
network/ Rules that use network data sources
promotions/ Rules that promote external alerts into detection engine alerts
windows/ Rules for the Microsoft Windows Operating System

Integration specific rules are stored in the integrations/ directory:

folder integration
aws/ Amazon Web Services (AWS)
azure/ Microsoft Azure
cyberarkpas/ Cyber Ark Privileged Access Security
endpoint/ Elastic Endpoint Security
gcp/ Google Cloud Platform (GCP)
google_workspace/ Google Workspace (formerly GSuite)
o365/ Microsoft Office
okta/ Oka